A charity collected $40 for each mile Carlos ran in a race. If the charity received $400, which equation could you use to find out how many miles Carlos ran in the race?

Iq scores for adults age 20 to 34 years are normally distributed according to n(120, 20). in what range does the middle 68% of people in this group score on the test?

Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,

Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)